Fortinet alternatives: should you leave, where to go, and how to migrate
Six sourced reasons to leave, nine destinations, and an eight-step FortiGate migration.
The short answer: Sophos Firewall if you want the most tooling for the move (an official FortiOS migration assistant), Palo Alto if you run a security team, Cisco Meraki MX if you want everything in a cloud dashboard, Netgate pfSense Plus, OPNsense or Firewalla if you want a published price and no mandatory subscription, and a SASE (Zscaler, Cato) if your real problem is remote access. One honest caveat: FortiGate still tops our business firewall ranking on throughput for the money. Leave for a specific reason, not on principle. We compared all nine destinations and their migration paths in 2026.
The ranking is editorial: a sponsored spot is always labeled on its card, and no affiliate link changes a score.
Why teams look elsewhere, and what Fortinet gets right
Fair is fair: a FortiGate pushes a lot of traffic for its price, SD-WAN comes built in, and admins like the interface. People leave for other reasons. Here are six, each backed by an official source.
SSL VPN bugs on CISA's exploited list
CISA's Known Exploited Vulnerabilities catalog (the bugs the agency knows attackers use) lists 32 Fortinet entries, 15 of them on FortiOS. Three hit the SSL VPN directly: CVE-2022-42475 (added in 2022), CVE-2023-27997 (2023) and CVE-2024-21762 (2024). For federal agencies, a KEV entry comes with a hard patch deadline. For you, it's a signal that the VPN portal is a target.
Persistence that survived updates
In 2025, France's national CERT reported many FortiGates compromised since 2023. Attackers left a symbolic link that outlived patching. Only FortiOS 7.6.2, 7.4.7, 7.2.11, 7.0.17 or 6.4.16 removed it. Units where SSL VPN was never turned on were not affected.
SSL VPN tunnel mode is gone in 7.6.3
Starting with FortiOS 7.6.3, Fortinet no longer supports SSL VPN tunnel mode. Existing tunnel settings and their policies don't carry over: they are dropped on upgrade. Fortinet advises moving to IPsec VPN before you upgrade. If 80 sales reps connect through FortiClient SSL, you're rebuilding remote access anyway.
The box isn't the price
Fortinet's own pricing page puts a small business firewall at roughly $700 to $1,000 in hardware, and $1,500 to $4,000 in hardware for 15 to 100 users. FortiGuard security services, FortiCare support and installation are listed separately. Renewal is where the bill grows.
What stops when FortiGuard expires
According to an official Fortinet technical note, antivirus and IPS keep running on old signatures, but category-based web and DNS filtering stops, and by default all web traffic is dropped unless you allowed traffic on rating errors. On Fortinet's forum, an admin describes a 81F cutting internet access the day the UTM contract expired.
Patch fatigue
Every KEV entry means an urgent update, and every update can break a VPN. On admin forums, people admit they delayed a patch during a busy quarter to avoid breaking remote access. That's exactly the window attackers wait for. If your team can't keep up, a simpler platform or a cloud service may be the safer bet.
You're leaving because… go to…
One reason, one destination. Click the card that fits to jump to the tool.
An official migration assistant imports interfaces, objects, static routes and rules from FortiOS.
You have a security team and want depthPalo Alto NetworksBenchmark app-level inspection, plus the Expedition migration tool.
You're done with the command lineCisco Meraki MXEverything runs from the cloud dashboard, but the license is vital.
You never want a mandatory subscription againpfSense Plus or OPNsensePublished prices: $829 (4200 MAX) or €978 (DEC740).
You run a small office and want it simpleFirewalla Gold Pro$949, no subscription required.
Your real problem is remote accessA SASE (Zscaler, Cato)Replace the exposed VPN portal with zero trust access in the cloud.
Fortinet alternatives, one by one
For each tool: why switch to it, who it's for, its limit, how to migrate from a FortiGate, and its price when the vendor publishes one. Scores come from our business firewall ranking, so a tool has one score across the site.
Sophos Firewall XGS: the best-tooled migration
Easiest moveWhy switch to Sophos. It's the only destination here whose vendor publishes a migration assistant built for FortiGate configs, supplied through its partners. It reads FortiOS 6.x or 7.x and outputs a config for an XGS or SFOS 21.0 and later. Sophos also says cloud management, reporting, zero-touch deployment and HA-friendly licensing are included, where Fortinet may need extra subscriptions.
Who it's for. Small businesses with no network team, and MSPs running many small sites. The XGS 88 is rated at 2,000 Mbps threat protection.
Who it's not for. A multi-VDOM setup running BGP everywhere: the converter takes a single VDOM and skips dynamic routing.
Its limit. It doesn't carry over users and groups, VPNs (IPsec and SSL), OSPF and BGP, certificates or IPv6. Ask how license transfers work before you buy: on a European admin forum, one customer paid around €1,200 because a license couldn't move to a new model.
How to migrate. Export the FortiGate config, run it through the tool (supplied by your Sophos partner), then review every rule. Sophos itself recommends working with a qualified partner for deployment.
- Score
- 4.2/5
- Price
- no public price list, via partners
- Migration
- FortiOS migration assistant
- Limit
- VPN and BGP rebuilt by hand
Palo Alto Networks: depth for security teams
Most completeWhy switch to Palo Alto. Its App-ID inspection is still the benchmark. If you're leaving Fortinet after an incident and leadership wants the strictest firewall money can buy, this is usually the name on the shortlist. The lineup runs from PA-50R to PA-7500.
Who it's for. Midsize companies with a security team or an MSSP that will actually use app-based policies.
Who it's not for. A small business without a specialist. On admin forums, people call it the priciest option, and its depth costs tuning time.
Its limit. No public pricing. Palo Alto community threads on FortiGate migrations show objects move cleanly, but rules and NAT often need rework, and ICMP traffic triggers unexpected App-IDs.
How to migrate. Expedition imports the FortiGate config file and produces PAN-OS XML. Plan a line-by-line review of rules, NAT and applications. Palo Alto also sells a paid migration service.
- Score
- 4.1/5
- Price
- no public price list, via partners
- Migration
- Expedition tool
- Limit
- rules and NAT to review
Check Point Quantum Spark: prevention numbers you can trust
PreventionWhy switch to Check Point. Check Point publishes threat prevention throughput under enterprise testing conditions with every protection on (IPS, antivirus, anti-bot, URL filtering, sandboxing): 1,500 Mbps for the Quantum Spark 1600 and 2,000 Mbps for the 1800. If datasheet numbers have let you down before, this figure sits closer to real use.
Who it's for. Small businesses and branch offices that want a prevention-first box managed locally or from the cloud.
Who it's not for. Teams that want a one-click converter from Fortinet: Check Point doesn't promote one.
Its limit. No public pricing, and its Fortinet comparison page is a competitor's pitch. Read it that way.
How to migrate. Through a partner, or by hand from your object and rule inventory.
- Prevention
- 1,500 Mbps (1600), 2,000 Mbps (1800)
- Price
- no public price list, via partners
- Best for
- SMB, branch offices
- Limit
- no advertised converter
WatchGuard Firebox: built for MSPs
MSP favoriteWhy switch to WatchGuard. WatchGuard sells mostly through MSPs, and its bundles are easy to read. Standard Support includes centralized management, full VPN, built-in SD-WAN and 24x7 support. Basic Security Suite adds IPS, antivirus, URL filtering, app control and spam blocking. Total Security Suite adds AI-driven detection, ThreatSync XDR and endpoint security.
Who it's for. Businesses that outsource their network, and MSPs running dozens of small sites.
Who it's not for. Teams that want to run everything themselves. The T25 is rated at 403 Mbps full UTM scan, so keep it for small offices.
Its limit. No public pricing, and entry-level throughput is modest.
How to migrate. Your WatchGuard partner rebuilds the config from your inventory. Get the VPN rebuild in the quote.
- Score
- 3.9/5
- Price
- no public price list, via partners
- Best for
- MSPs, multi-site
- Limit
- partner dependency
Cisco Meraki MX: cloud-managed, mind the license
Cloud managedWhy switch to Meraki. Everything lives in one web dashboard: a new site plugs in and pulls its config. For a team tired of CLI work and manual firmware, it's the biggest change you can make.
Who it's for. Multi-site networks without on-site specialists, and shops already on Meraki Wi-Fi or switches.
Who it's not for. Anyone leaving Fortinet over licensing. With Meraki, the license isn't optional: after expiry you get 30 days of grace, then all Meraki devices shut down until you're back in compliance, which only new licenses fix.
Its limit. Licenses are per model and not transferable, and Advanced Security is an org-wide setting.
How to migrate. No converter: rebuild rules and VPNs in the dashboard. Site-to-site VPN between MX units takes a few clicks, which is the upside.
- Score
- 4.0/5
- Price
- no public price list, via partners
- Strength
- fully cloud managed
- Limit
- shutdown 30 days after expiry
Netgate pfSense Plus: the appliance with a price tag
Published priceWhy switch to Netgate. Netgate shows its prices: the 4200 MAX is $829 with TAC Lite included, TAC Pro costs $399 a year and TAC Enterprise $799 a year. You know what year three costs, which is rare in this market.
Who it's for. Small businesses and MSPs comfortable with pfSense, one of the most documented firewalls on forums.
Who it's not for. Anyone who wants FortiGate-level web and app filtering out of the box: you add and tune packages.
Its limit. Netgate doesn't publish an IPS throughput figure, so size with headroom.
How to migrate. By hand: interfaces, VLANs, aliases, rules, NAT, then IPsec or WireGuard.
- Score
- 4.0/5
- Price
- $829 (Netgate 4200 MAX)
- Support
- TAC Pro $399/yr
- Limit
- no IPS throughput published
OPNsense (Deciso): open source, no mandatory license
Open sourceWhy switch to OPNsense. The software is open source, and Dutch vendor Deciso sells appliances at public prices: the DEC740 is €978 on its EU store, with about 1 Gbps threat protection and one year of Business Edition included. Nothing stops working if you don't renew.
Who it's for. Teams with in-house network skills or a capable MSP.
Who it's not for. Anyone without someone comfortable on a firewall: there's no migration wizard and no 24x7 support by default.
Its limit. Advanced filtering comes from plugins you pick and tune, and pricing is in euros, so US buyers pay shipping and currency on top.
How to migrate. By hand, same logic as pfSense. Use it to clean out dead rules.
- Score
- 4.1/5
- Price
- €978 (DEC740, EU store)
- License
- not required
- Limit
- needs network skills
Firewalla Gold Pro: the small office box with no subscription
No subscriptionWhy switch to Firewalla. Firewalla sells the Gold Pro for $949 with no subscription required, and runs it from a phone app. For a 10-person office that bought a FortiGate and never touched FortiGuard settings, it's a much simpler life.
Who it's for. Small offices and owner-run businesses without IT staff.
Who it's not for. Multi-site companies or anyone with compliance audits: it's not built for that scale.
Its limit. It has the lowest score in our firewall ranking (3.8/5): it is built for small offices, not for the depth of business-grade platforms.
How to migrate. Recreate a handful of rules and a WireGuard VPN in the app. Plan an afternoon.
- Score
- 3.8/5
- Price
- $949 (Gold Pro)
- Subscription
- none required
- Limit
- small offices only
Ditch the box: a SASE (Zscaler, Cato Networks)
No applianceWhy switch to a SASE. If the exposed VPN portal is what keeps you up at night, the answer may not be another firewall. A SASE moves security to the cloud: users connect to a service that checks every request (zero trust), and no VPN portal faces the internet from your office. The end of tunnel mode in 7.6.3 makes the math easier.
Who it's for. Companies with lots of remote staff or small sites without IT.
Who it's not for. A plant or headquarters with heavy local traffic: keep a firewall on site.
Its limit. No public pricing at Zscaler (Essentials and Zscaler Platform tiers) or Cato. Zscaler sizes branch offers on encrypted throughput.
How to migrate. Group by group: a pilot team moves to SASE while the VPN stays up for everyone else, then you close the portal.
- Price
- no public price list
- Replaces
- remote-access VPN
- Best for
- remote teams, multi-site
- Limit
- on-site firewall still useful
9 alternatives side by side
Our default picks: Sophos to move fast, Meraki to stop babysitting firmware, Netgate or Firewalla to stop paying subscriptions. One row per destination: on the left what you gain by leaving Fortinet, on the right the catch and the price when it's public.
| What you gain | The catch and the price | |
|---|---|---|
| Fortinet FortiGateStarting point, 4.4/5 | Throughput for the money, SD-WAN built in | Hardware about $700 to $1,000 (Fortinet range), services extra |
| Sophos Firewall4.2/5 | FortiOS migration assistant | VPN, users and BGP rebuilt; no public price list |
| Palo Alto Networks4.1/5 | Benchmark app inspection | Priciest per admins; no public price list |
| Check Point Quantum SparkPrevention | Throughput published with every protection on | No public price list |
| WatchGuard Firebox3.9/5 | Clear bundles, big MSP network | Partner dependency; no public price list |
| Cisco Meraki MX4.0/5 | Fully cloud managed | Devices shut down 30 days after license expiry |
| Netgate pfSense Plus4.0/5 | Published prices and support tiers | $829 (4200 MAX), TAC Pro $399/yr |
| OPNsense4.1/5 | No mandatory license | €978 (DEC740); needs network skills |
| Firewalla Gold Pro3.8/5 | No subscription, app-managed | $949; small offices only |
| SASE (Zscaler, Cato)No appliance | No exposed VPN portal | No public price list; keep a local firewall |
Prices read on official vendor pages in 2026, before tax, subject to change. Reseller prices are left out.
Migrate off a FortiGate in eight steps
Order matters more than the tool. Most failed migrations come from a bad date or a forgotten VPN, not a badly converted rule.
Inventory what's actually running
Week 1List VDOMs, interfaces and VLANs, objects, policies, NAT, VPNs (site-to-site IPsec and SSL for remote users), dynamic routing (BGP, OSPF), FortiClient users, authentication (LDAP, RADIUS, MFA) and integrations (FortiAnalyzer, syslog, SNMP).
These are exactly what converters skip. One row per item becomes your cutover checklist.
- Time
- half a day per site
- Risk if rushed
- forgotten VPN
Time the cutover to your FortiGuard expiry
Week 1Write down each license end date. At expiry, category web filtering stops and web traffic is dropped by default: letting it lapse "while you migrate" takes the office offline. Users also report that renewals start from the expiry date, not the payment date, so waiting saves nothing.
Aim to finish a month before expiry. If that's too tight, renew for the shortest term offered rather than letting it lapse.
- Buffer
- one month
- Risk
- web traffic dropped
Clean up policies first
Week 2On a FortiGate that's a few years old, plenty of policies see no traffic. The per-policy hit count tells you which. Disable the zeros for two weeks, then delete them.
Every rule you drop here is one less to review after conversion.
- Tool
- policy hit count
- Win
- fewer rules to review
Convert with the destination's tool
Week 2Sophos gives its partners a migration assistant (single VDOM), Palo Alto has Expedition, Cisco has the Secure Firewall Migration Tool with a Fortinet guide. Meraki, WatchGuard, pfSense, OPNsense and Firewalla are rebuilt by hand.
Whatever the tool, review every converted policy: objects travel well, rules and NAT less so.
- Converters
- Sophos, Palo Alto, Cisco
- Review
- rules and NAT
Rebuild remote access, don't copy the SSL VPN
Week 3No converter carries VPNs. Move to IPsec or zero trust access instead of rebuilding an exposed SSL portal. Pilot with five users on different devices (Windows, Mac, phone) before opening it to everyone.
Keep the old VPN up during the transition, with MFA on.
- Target
- IPsec or zero trust
- Pilot
- 5 users
Rotate every secret
Week 3If your FortiGate was internet-facing, treat its secrets as known: admin passwords, VPN accounts, IPsec pre-shared keys, LDAP service accounts. Don't reuse any of them on the new box.
Spain's national cybersecurity agency gave the same advice after a 2026 leak of Fortinet-linked credentials.
- Rotate
- admin, VPN, keys, LDAP
- Also
- MFA everywhere
Run a pilot site in parallel
Week 4Move a small site or one VLAN first. Run it for a week, compare logs and list what breaks: a blocked line-of-business app, an unreachable printer, a silent VoIP phone.
Fix, then move the next site. Never cut over every site the same night.
- Length
- one week per wave
- Rollback
- old box still cabled
Cut over, keep the old box as backup
Week 5Cut over on a quiet evening with a written rollback plan. Keep the FortiGate configured and unplugged until its contract ends, then factory reset it before resale or recycling.
Update the network docs the same day. It's the first thing people forget.
- Backup
- until contract end
- Before resale
- factory reset
Is your tool missing from this page? Email us: hello@hackceleration.com
What makes a Fortinet migration fail
The same mistakes show up again and again on admin forums. None of them is a product problem: they're timing and inventory misses.
Letting FortiGuard lapse mid-project
Web filtering stops and web traffic is dropped by default. A whole office offline on a Monday is the worst way to meet your new firewall.
Upgrading to 7.6.3 before rebuilding the VPN
SSL VPN tunnel settings are dropped on upgrade. Move to IPsec first, then upgrade.
Trusting the converter blindly
Users, VPNs, BGP, OSPF, certificates and IPv6 stay manual with Sophos. Rules and NAT need review with Palo Alto. Budget the hours.
Copying old secrets
A VPN password that leaked from the old box is just as dangerous on the new one. Rotate everything and turn on MFA.
Swapping into a worse license trap
Fortinet drops web traffic at expiry. Meraki shuts devices down 30 days after. Read the destination's expiry rules before you sign, and ask for a renewal price cap.
Comparing throughput that doesn't compare
Every vendor measures differently. Compare orders of magnitude and ask for a demo unit on your own traffic. Our business firewall ranking lines up published figures, our business VPN guide helps replace remote access, and our EDR guide covers endpoints.
- VDOMs, VPNs, dynamic routing, auth and integrations inventoried
- FortiGuard and FortiCare expiry dates noted
- Unused policies removed before conversion
- Converted config reviewed rule by rule
- Remote access rebuilt on IPsec or zero trust
- Every secret rotated, MFA on
- Pilot site validated for a week
- Old box kept as backup, then factory reset
Frequently asked questions
Who is Fortinet's main competitor?
Palo Alto Networks for large security teams, Sophos and Cisco Meraki for small and midsize businesses. Our business firewall ranking scores them on one grid.
Is Fortinet still safe to use?
Yes, if it's patched and the admin interface isn't exposed. CISA's KEV catalog lists 32 Fortinet bugs, so patch speed is the real risk. Units where SSL VPN was never enabled weren't hit by the persistence campaign France's CERT reported.
What happens when FortiGuard expires?
Antivirus and IPS keep old signatures, but category web filtering stops and, by default, all web traffic is dropped. An option lets traffic through on rating errors: check it before the date.
Can I migrate a FortiGate config to Palo Alto or Sophos?
Partly. Sophos's migration assistant handles interfaces, objects, static routes and rules from a single VDOM. Palo Alto has Expedition. VPNs, users and dynamic routing are manual everywhere.
What replaces FortiGate SSL VPN?
IPsec VPN, which Fortinet itself recommends before moving to 7.6.3, or cloud zero trust access (SASE). Our business VPN guide compares options.
Is there a cheaper alternative to FortiGate?
On published prices, yes: Netgate's 4200 MAX is $829 and Firewalla Gold Pro is $949, both with no mandatory subscription. Fortinet's own range is $700 to $1,000 in hardware, before services.
Should I replace Fortinet with a SASE?
Only if most of your traffic comes from remote users or small sites. A busy headquarters keeps an on-site firewall. Many companies run both.
Get the next migration guide in your inbox
One tool to leave, one destination, one migration plan. Nothing else.